Quarterly report pursuant to Section 13 or 15(d)

Organization and Summary of Significant Accounting Policies - Additional Information (Detail)

v3.3.0.814
Organization and Summary of Significant Accounting Policies - Additional Information (Detail)
$ in Thousands, shares in Millions
 3 Months Ended 9 Months Ended
Apr. 30, 2015
USD ($)
subsidiary
shares
Sep. 30, 2015
employee
Sep. 30, 2014
Sep. 30, 2015
employee
Sep. 30, 2014
Business Acquisition [Line Items]          
Percentage of revenue from company's distributors   14.00% 30.00% 14.00% 28.00%
Term of Invoice of the distributor       30 days  
Entropic Communications Restructuring Plan [Member]          
Business Acquisition [Line Items]          
Number of employees terminated | employee   73   73  
Entropic Communications [Member]          
Business Acquisition [Line Items]          
Number of wholly-owned subsidiaries (in subsidiary) 2        
Cash | $ $ 111,125        
Consideration issued in shares | shares 20.4